Oil on canvas. Renjie Gao or Jean-Michel Gao is a Chinese artist born in 1994 in Inner Mongolia. He is a member of New York Hudson Artists Association based in US. He lives & works in Beijing Songzhuang in China. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution